package com.sgcc.system.service.impl;

import com.sgcc.common.core.constant.UserConstants;
import com.sgcc.common.core.exception.CustomException;
import com.sgcc.common.core.utils.StringUtils;
import com.sgcc.common.datascope.annotation.DataScope;
import com.sgcc.common.security.service.TokenService;
import com.sgcc.system.api.domain.SysDept;
import com.sgcc.system.api.domain.SysRole;
import com.sgcc.system.api.model.LoginUser;
import com.sgcc.system.domain.vo.TreeSelect;
import com.sgcc.system.mapper.SysDeptMapper;
import com.sgcc.system.mapper.SysRoleMapper;
import com.sgcc.system.service.ISysDeptService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.*;
import java.util.stream.Collectors;

/**
 * 部门管理 服务实现
 * 
 * @author sgcc
 */
@Service
public class SysDeptServiceImpl implements ISysDeptService
{
    @Autowired
    private SysDeptMapper deptMapper;

    @Autowired
    private SysRoleMapper roleMapper;

    @Autowired
    private TokenService tokenService;

    /**
     * 查询部门管理数据
     * 
     * @param dept 部门信息
     * @return 部门信息集合
     */
    @Override
    @DataScope(deptAlias = "d")
    public List<SysDept> selectDeptList(SysDept dept)
    {
        return deptMapper.selectDeptList(dept);
    }

    /**
     * 构建前端所需要树结构
     * 
     * @param depts 部门列表
     * @return 树结构列表
     */
    @Override
    public List<SysDept> buildDeptTree(List<SysDept> depts)
    {
        List<SysDept> returnList = new ArrayList<SysDept>();
        List<String> tempList = new ArrayList<String>();
        for (SysDept dept : depts)
        {
            tempList.add(dept.getDeptId());
        }
        for (Iterator<SysDept> iterator = depts.iterator(); iterator.hasNext();)
        {
            SysDept dept = (SysDept) iterator.next();
            // 如果是顶级节点, 遍历该父节点的所有子节点
            if (!tempList.contains(dept.getParentId()))
            {
                recursionFn(depts, dept);
                returnList.add(dept);
            }
        }
        if (returnList.isEmpty())
        {
            returnList = depts;
        }
        return returnList;
    }

    /**
     * 构建前端所需要下拉树结构
     * 
     * @param depts 部门列表
     * @return 下拉树结构列表
     */
    @Override
    public List<TreeSelect> buildDeptTreeSelect(List<SysDept> depts)
    {
        List<SysDept> deptTrees = buildDeptTree(depts);
        return deptTrees.stream().map(TreeSelect::new).collect(Collectors.toList());
    }

    /**
     * 根据角色ID查询部门树信息
     * 
     * @param roleId 角色ID
     * @return 选中部门列表
     */
    @Override
    public List<Integer> selectDeptListByRoleId(String roleId)
    {
        SysRole role = roleMapper.selectRoleById(roleId);
        return deptMapper.selectDeptListByRoleId(roleId, role.isDeptCheckStrictly());
    }

    /**
     * 根据部门ID查询信息
     * 
     * @param deptId 部门ID
     * @return 部门信息
     */
    @Override
    public SysDept selectDeptById(String deptId)
    {
        return deptMapper.selectDeptById(deptId);
    }

    /**
     * 根据ID查询所有子部门（正常状态）
     * 
     * @param deptId 部门ID
     * @return 子部门数
     */
    @Override
    public int selectNormalChildrenDeptById(String deptId)
    {
        return deptMapper.selectNormalChildrenDeptById(deptId);
    }

    /**
     * 是否存在子节点
     * 
     * @param deptId 部门ID
     * @return 结果
     */
    @Override
    public boolean hasChildByDeptId(String deptId)
    {
        int result = deptMapper.hasChildByDeptId(deptId);
        return result > 0 ? true : false;
    }

    /**
     * 查询部门是否存在用户
     * 
     * @param deptId 部门ID
     * @return 结果 true 存在 false 不存在
     */
    @Override
    public boolean checkDeptExistUser(String deptId)
    {
        int result = deptMapper.checkDeptExistUser(deptId);
        return result > 0 ? true : false;
    }

    /**
     * 校验部门名称是否唯一
     * 
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public String checkDeptNameUnique(SysDept dept)
    {
    	String id=UUID.randomUUID().toString().replaceAll("-", "");
    	String deptId = StringUtils.isNull(dept.getDeptId()) ? id : dept.getDeptId();
        SysDept info = deptMapper.checkDeptNameUnique(dept.getDeptName(), dept.getParentId());
        if (StringUtils.isNotNull(info) && !info.getDeptId().equals(deptId))
        {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 新增保存部门信息
     * 
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public int insertDept(SysDept dept)
    {
        dept.setCreateTime(new Date());
    	if(null==dept.getDeptId()) {
    		String id=UUID.randomUUID().toString().replaceAll("-", "");
    		dept.setDeptId(id);
    	}
        SysDept info = deptMapper.selectDeptById(dept.getParentId());
        // 如果父节点不为正常状态,则不允许新增子节点
        if (!UserConstants.DEPT_NORMAL.equals(info.getStatus()))
        {
            throw new CustomException("部门停用，不允许新增");
        }
        dept.setAncestors(info.getAncestors() + "," + dept.getDeptId());
        // 判断新增的是单位还是部门
        if ("02".equals(dept.getType())){
            // 01单位 02部门
            if ("02".equals(info.getType())){
                if(null != info.getOrgId()){
                    dept.setOrgId(info.getOrgId());
                }else {
                    dept.setOrgId(info.getParentId());
                }
            }else{
                dept.setOrgId(info.getDeptId());
            }
        }


        return deptMapper.insertDept(dept);
    }

    /**
     * 修改保存部门信息
     * 
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public int updateDept(SysDept dept)
    {
        dept.setUpdateTime(new Date());
        SysDept newParentDept = deptMapper.selectDeptById(dept.getParentId());
        SysDept oldDept = deptMapper.selectDeptById(dept.getDeptId());
        if (StringUtils.isNotNull(newParentDept) && StringUtils.isNotNull(oldDept))
        {
            String newAncestors = newParentDept.getAncestors() + "," + oldDept.getDeptId();
            String oldAncestors = oldDept.getAncestors();
            dept.setAncestors(newAncestors);
            updateDeptChildren(dept.getDeptId(), newAncestors, oldAncestors);
        }
        // 01表示单位，02表示部门
        if ("02".equals(dept.getType())){
            // 修改自己对应的orgid以及他下级的orgid
            // 判断修改后的上级是单位还是部门，是单位则直接取他的deptid，如果是部门取orgid
            if ("01".equals(newParentDept.getType())){
                dept.setOrgId(newParentDept.getDeptId());
            }else {
                dept.setOrgId(newParentDept.getOrgId());
            }
            // 在查询出此部门下的所有下级，更改下级对应的orgid
            List<SysDept> children = deptMapper.selectChildrenDeptById(dept.getDeptId());
            for (SysDept child : children)
            {
                if (!child.getDeptId().equals(dept.getDeptId())){
                    child.setOrgId(dept.getOrgId());
                    deptMapper.updateOrgId(child);
                }
            }
        }
        int result = deptMapper.updateDept(dept);
        if (UserConstants.DEPT_NORMAL.equals(dept.getStatus()))
        {
            // 如果该部门是启用状态，则启用该部门的所有上级部门
            updateParentDeptStatus(dept);
        }
        return result;
    }

    /**
     * 修改该部门的父级部门状态
     * 
     * @param dept 当前部门
     */
    private void updateParentDeptStatus(SysDept dept)
    {
        String updateBy = dept.getUpdateBy();
        dept = deptMapper.selectDeptById(dept.getDeptId());
        if (null != updateBy && dept != null){
            dept.setUpdateBy(updateBy);
        }
        deptMapper.updateDeptStatus(dept);
    }

    /**
     * 修改子元素关系
     * 
     * @param deptId 被修改的部门ID
     * @param newAncestors 新的父ID集合
     * @param oldAncestors 旧的父ID集合
     */
    public void updateDeptChildren(String deptId, String newAncestors, String oldAncestors)
    {
        List<SysDept> children = deptMapper.selectChildrenDeptById(deptId);
        for (SysDept child : children)
        {
            child.setAncestors(child.getAncestors().replace(oldAncestors, newAncestors));
        }
        if (children.size() > 0)
        {
            deptMapper.updateDeptChildren(children);
        }
    }

    /**
     * 删除部门管理信息
     * 
     * @param deptId 部门ID
     * @return 结果
     */
    @Override
    public int deleteDeptById(String deptId)
    {
        return deptMapper.deleteDeptById(deptId);
    }

    /**
     * 递归列表
     */
    private void recursionFn(List<SysDept> list, SysDept t)
    {
        // 得到子节点列表
        List<SysDept> childList = getChildList(list, t);
        t.setChildren(childList);
        for (SysDept tChild : childList)
        {
            if (hasChild(list, tChild))
            {
                recursionFn(list, tChild);
            }
        }
    }

    /**
     * 得到子节点列表
     */
    private List<SysDept> getChildList(List<SysDept> list, SysDept t)
    {
        List<SysDept> tlist = new ArrayList<SysDept>();
        Iterator<SysDept> it = list.iterator();
        while (it.hasNext())
        {
            SysDept n = (SysDept) it.next();
            if (StringUtils.isNotNull(n.getParentId()) && n.getParentId().equals(t.getDeptId())  )
            {
                tlist.add(n);
            }
        }
        return tlist;
    }

    /**
     * 判断是否有子节点
     */
    private boolean hasChild(List<SysDept> list, SysDept t)
    {
        return getChildList(list, t).size() > 0 ? true : false;
    }

	@Override
	public List<SysDept> getAll() {
		// TODO Auto-generated method stub
		return deptMapper.getAll();
	}

    @Override
    public Map<String, Object> getOrgNOAndOrgName() {
        List<SysDept> sysDeptList = deptMapper.getOrgNOAndOrgName();
        Map<String, Object> deptMap = new HashMap<>();
        for(SysDept sysDept : sysDeptList){
            deptMap.put(sysDept.getDeptId(),sysDept.getDeptName());
        }
        return deptMap;
    }

    @Override
    public Map<String, Object> getOrgNOAndAreaName() {
        List<SysDept> sysDeptList = deptMapper.getOrgNOAndOrgName();
        Map<String, Object> deptMap = new HashMap<>();
        for(SysDept sysDept : sysDeptList){
            deptMap.put(sysDept.getDeptId(),sysDept.getAreaName());
        }
        return deptMap;
    }

    @Override
    public List<SysDept> countSelectDeptList(SysDept dept) {
        LoginUser loginUser = tokenService.getLoginUser();
        dept.setDeptId(loginUser.getSysUser().getOrgId());
        dept.setParentId(loginUser.getSysUser().getOrgId());
        return deptMapper.countSelectDeptList(dept);
    }

    @Override
    public List<SysDept> getDistrictByOrgId(SysDept sysDept) {
        if (null != sysDept){
            if("35101".equals(sysDept.getDeptId())){
                return deptMapper.getDistrictIsContain(sysDept);
            }
            if (null != sysDept.getIsContain() && "1".equals(sysDept.getIsContain())){
                return deptMapper.getDistrictIsContain(sysDept);
            }else {
                return deptMapper.getDistrictByOrgId(sysDept);
            }
        }
        return deptMapper.getDistrictByOrgId(sysDept);
    }

    @Override
    public String checkDeptIdUnique(SysDept dept) {
        String id=UUID.randomUUID().toString().replaceAll("-", "");
        String deptId = StringUtils.isNull(dept.getDeptId()) ? id : dept.getDeptId();
        SysDept info = deptMapper.selectDeptById(deptId);
        if (StringUtils.isNotNull(info))
        {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    @Override
    public List<SysDept> getInfoByparentId(String deptId) {
        return deptMapper.getInfoByparentId(deptId);
    }

    @Override
    public List<SysDept> getSubordinateUnit(String deptId) {
        return deptMapper.getSubordinateUnit(deptId);
    }

    @Override
    public List<SysDept> getUnitByparentId(String deptId) {
        return deptMapper.getUnitByparentId(deptId);
    }

    @Override
    public List<SysDept> getCityAndQuXianBySheng(String deptId) {
        return deptMapper.getCityAndQuXianBySheng(deptId);
    }

    @Override
    public List<SysDept> getAllCityAndDistrictInfo() {
        return deptMapper.getAllCityAndDistrictInfo();
    }
}
